Door check



Filed July 26, 1946 E. LOEHR ET AL DOOR CHECK 2 Sheets-Sheet l INVENTORSiormm? gar/70:41; ZM QZJL oe/lr W Z%ey Oct. 11, 1949. E L' EHR ET A2,484,717

DOOR CHECK iled July 26, 1946 r 2 Sheets-Sheet 2 F 715 iZ-Tz'jjjattorney Patented Oct. 11, 1949 Ewald Loehr and Edward G. Sprink,

Milwaukee, Wis.

Application July '26, 1946, Serialf No. 686,512

I This invention relates to a door check which may be permanentlyattached to any door with bolts or metal screws or other typefastenings, and it is claimed that this door check will ps1- tively holdthe door at any desired position without the need of a strike plate inthe floor. Instead of the latter a rubber roller is provided at thebottom' end of a foot-operated rod as pedal for compressing the rolleragainst the floor with the door in any desired position, closed or 1open.

'One embodiment of the invention is illustrated in the accompanyingdrawings, wherein like reference numerals relate to the same details inthe different views.

Figure 1 is a side elevational view of the door stop as attached on adoor;

Figure 2 is a front elevation and part section of Figure 1;

- Figure 3 is an assembled view in front elevation of the actuating rodwith cap;

Figure 4 ,is atop plan view of Figure 3;

Figures'5 and 6 are a top plan View and a front elevation respectivelyof an arresting plate for -'the actuating rod;

Figures 7 and 8 are a top plan view and a front elevation respectivelyof a lifting spring washer, Figures 9, ,10 and 11 respectively are aside elevation, front elevation and top plan viewv of the yoke for theroller, and

Figures 12 and 13 respectively are a front view and side elevation ofthe check roller.

In the drawings reference numeral 20 in general indicates the casing inwhich all the elements of the door check are enclosed. This casing ispreferably a metal stamping with a flat rear wall l9 intended forattachment to the face of a door 2| by means of screws 22 The mainportion 23 of the casing consists of a hollow, thin walled shell, wideopen at the bottom as at 24 and closed at the top except for a roundopening 25 for the actuating rod 26 to go through. Above this top therear wall I9 extends upwardly to provide a small pocket 21 with a narrowslit 28 on the front side for receiving a lip 28 of a friction plate 29permitting a limited up and down oscillation of the plate. This plate 29is tilted upwardly by means of a compression spring 30 so that theactuating rod 26 passing through the round opening 3| in the plate andthe corresponding opening 25 in the top wall of the casing shell 23,will become locked in position.

The actuating rod 26 has a straight shank 32 with a cap 33 threadedthereon at its upper 3 Claims. (CL- 292178)' end, while a brake-shoe 34is welded to its lower end; This shoe 34' consists of flat wings in theshape of an inverted V to form an angular seat 'for the top surface ofthe friction roller 35.

The wings of the brake-shoe are square cut and may have side lugs 48 toprevent the shoe with '-the rod 26 from turning in the casing 23 to makesure that the periphery of the roller is in the direction of swing ofthe door. The roller is made of resilient rubber or similar material andhas a metal bushing for a steel pin 31 on which it revolves in the twoarmed yoke 38.

r Before putting the roller 35 in place between the arms of the yoke 38a centering coil spring 39is slipped on the shank 32 of the rod '26, and

over the spring the top 45 of the yoke 38 having a hole 45a rides onsaid spring. Thereupon the roller 35 is put in place by pushing it upagainst the brake-shoe 34, and the pressure of spring 39, and the pin 31inserted through the bushing 36 into the bearings in the arms of theyoke 38. l

About midway upin the shell 56 is provided a horizontal partition orshelf 4| having a round opening 42 in axial alignment with the hole 25in the top 54 of the shell 46. The rear wall l9 of this shell ispreferably open to permit the placing of a lifting spring 43 and a cupwasher 44 inreadiness for inserting the actuating rod 26 into, thecasing to receive the stop pin 50 .which will be held by the flange ofthe cup washer With the yoke 38, roller 35 and the spring 39 assembledon the actuating rod 26 as described, the latter is now pushed upthrough the bottom opening of the casing 23, entering the hole 42 in theshelf 4| ready to receive the spring 43 and the washers 44. With theseactuating elements 43, 44 pushed down on the rod 26 an abutment pin 50is pushed transversel through a hole in said rod. The spring 43 willthen push the free upper end of the rod 26 through the free fitting topopening 25, th spring 35 causing the free edge of the friction plate 29to swing up above the top of the casing, as seen in Figures 1 and 2.

Lastly the cap nut 33 is screwed on the end of the rod 26 and the doorcheck is then ready for attachment on the side of a door by screws 22,two of which engaging the side ears 52 on the casing 23 and a third goesthrough the rear wall extension 53 above the top 54 of the casing 23.

With the device thus attached on the door 2|, the relative positions ofthe parts will be as appear in Figures 1 and 2 with the actuating rod 26raised to its inactive or top position by lifting spring 43, when thecupped washer M is stopped by the pin 50. The washer in turnreciprocates by preventing the pin from falling out by contacting theends of said pin with its mm.

The roller; 35 now merely tguc hes the-fioor or stands lifted "eridughabove the same to permit swinging the door open.

As soon as the operator has opened the door to the extent he desires, hewill press downyith his foot on the head cap 33 and the rod '23;

thereby compressing the rubber roller joy the v floor comprising aroller, a yoke carrying the roller and slidably connected with the rod,yieldable means connected between the yoke and the rod and normallyurging the yoke and roller upwardly, and a brake-shoe carried upon thelower end of the rod and having yielding contact with the periphery ofthe roller.

A door check co prising an upright casmg in the form of a s ell open atthe bottom and closed at the top and having a central partition betweenits ends, a push rod mounted for axial displacement in guide openingsfurnished "iii said top and in said central partition, means rod 26 isgripped fast by the friction platede;

which stands at an incline to the axis of rod 25 to hold the ,latterfirmly by engaging the surface of rod 26 with its opposite edges of thehole at.

In order, lastly tolrelea'se the ",6: the roller 3 5 paths 11 i; allthat is needed jrijction plate 29, when the rod with the roller willrush up through the action of lifting spring 43.

. intl P fs fi i ll sl des ent rew lgpr ngsand actuating rodare-produced by metal stamping.

It is tobe understood thatthe invention as h ein disclosed may b evaried from the def l i f ssq ibe and hown. wit ut,giepa tfi and closedat the top and having a central partition between its ends; a push rodmountetisfor axial displacement in guide openings furnished in said topand in said central partition, the rod having a portion of its upper endproject- 'ing beyondsaid top, means for yieldingly urg- J'" ing the rodupwardly, a stop limiting the upward movement of the rod", exteriorlylocated means for arrestingupward niovementof the vrod, a compressibleelement connected with the lower end of thegrod and 'proj'ectingibeyo'ndthe open bottom of the shell for contact with the Nuniber foryiel'dingly urging the rod upwardly beyond said top, a stop limiting theupward movement of th e rod exteriorly located means for arrestiiig theupward movement of the rod, a yoke slida-bly mounted upon the lower endof the rod and having downwardly extending side arm portions, ayieldable roller rotatably upportekd bet n l t iid a mi rt b fi t l f 'eil vbmjecting downwar'dlyfthrough s' d opening "fir contact with anunderlying sur sho u dm i in e che lme fi h ow n ri Manna L 1? lm e ficarried by the rodland interposed between the shoe and the top part ofthe yoke. V 3. A door stop of the characte aterally project ng 'i'de 2vwh nise 'h ears extending beyond the sides of the] portions th oke, e.a apt d ad t w sqithe she lfis roller against turning mov'em'nt aboutthe'axis of the rod.

Residences this I The following references are of i'ecord'ir'rfithe fileof this patent: I when series

